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U.S. Bellows U.S. BELLOWS, INC.
METALLIC EXPANSION JOINT CATALOG
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Expansion Joint Data Tables
 
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Single Expansion Joint

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Single Metallic Expansion Joint Technical Drawing   Single Metallic Expansion Joint Technical Drawing  

Single Weld End

Single Flanged End

 
    Single Metallic Expansion Joint technical drawing  
   

Single Flanged Weld End

 

50 inch, 52 inch, 54 inch Nominal Diameter

Notes:

  1. Rated life cycle at 650°F is 3000 cycles for any one tabulated movement.
  2. To combine axial, lateral and angular movements, please refer to the how to order section.
  3. To increase cycle life or movements, please refer to graph on cycle life.
  4. Rated bellows extension is equal to rated axial movement. Provided bellows is precompressed the amount of design extension. Installed overall length will decrease by the amount of precompression.
  5. Maximum test pressure: 1.5 X rated working pressure.
  6. Bellows rated for 650°F: See catalog flange data for appropriate flange temperature/pressure ratings.
  7. Torsional spring rate data provided only for modeling expansion joints on computer stress programs. Please consult factory for allowable torsional loadings.
  8. Overall lengths and weights for unrestrained expansion joints only. Consult factory for information regarding tied, hinged, or gimbal expansion joints.
  9. Pressure thrust load applied to adjacent pipe anchors/equipment when unrestrained expansion joints are used.

Diameter

Pressure

Overall Length and Weight

Non-concurrant

movements

Spring rates

Flanged

Ends

Weld

Ends

Combination

Ends

Axial

Lateral

Angular

Axial

Lateral

Angular

Torsional

Overall Length

Weight

Overall Length

Weight

Overall Length

Weight

Compression

PSIG

in.

lb.

in.

lb.

in.

lb.

in.

in.

deg.

lb./in.

lb./in.

in./lb./deg.

in./lb./deg.

x 106

kg/cm2

mm

kg

mm

kg

mm

kg

mm

mm

Grad

kg/mm

kg/mm

N-M/Grad

N-M/Grad

x 105

50

75

13

953

16

197

15

575

2.1

0.11

5

2786

177720

1643

35.9278

5.2

330

433

406

89.5

381

261

53.3

2.79

5

50

3180

1682.4

36.5386

Effective Area

21

1002

24

246

23

624

5.4

0.55

10

1393

22215

8271

17.9639

533

455

610

112

584

284

137

14

11

25

398

841.2

18.2693

2138 in2

29

1050

32

294

31

672

8.1

1.24

10

929

6582

5514

11.9759

13,792 cm2

737

477

813

134

787

305

206

31.5

11

17

118

560.8

12.1795

52

70

13

1005

16

205

15

605

2.72

0.13

6

2899

199415

18562

40.4050

4.9

330

457

406

93.2

381

276

69.1

3.3

6

52

3569

1887.8

41.0919

Effective Area

21

1056

24

256

23

656

5.44

0.54

10

1450

24927

9281

20.2025

533

480

610

116

584

298

138

13.7

11

26

446

943.9

20.5459

2305 in2

29

1106

32

306

31

706

8.16

1.2

10

966

7386

6187

13.4683

14,870 cm2

737

503

813

139

787

321

207

30.5

11

17

132

629.2

13.6973

54

70

13

1057

16

213

15

635

2.72

0.13

6

3013

222807

20740

45.2394

4.9

330

480

406

96.8

381

289

69.1

3.3

6

54

3987

2109.3

46.0085

Effective Area

21

1110

24

266

23

688

5.44

0.52

10

1506

27851

10370

22.6197

533

505

610

121

584

313

138

13.2

11

27

498

1054.6

23.0043

2478 in2

29

1162

32

318

31

740

8.15

1.16

10

1004

8252

6913

15.0798

15,989 cm2

737

528

813

145

787

336

207

29.5

11

18

148

703.1

15.3362

Materials
Bellows: A240-T304. Alternate materials available upon request. Refer to the materials section.
Flanges: ASTM A105.
70-75 PSIG Series: 125 lb. Lt. Wt. FSSO.
Plate flanges and angle flanges available for low pressure systems.
Pipe: ASTM A285-C.
70-75 PSIG Series: 0.375-inch wall.
Liners: A240-T304.
Covers: Carbon steel.
Tie Rods, Hinges, Gimbals: Carbon steel

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